1. Department of Ophthalmology, Surugadai Nihon University Hospital, Tokyo, Japan,
2. Department of Ophthalmology, Teikyo University School of Medicine, University Hospital Itabashi, Tokyo, Japan,
3. Department of Ophthalmology, Teikyo University School of Medicine, University Hospital Mizonokuchi, Kanagawa, Japan,
4. Department of Ophthalmology, Kyorin University School of Medicine, Tokyo, Japan,
5. Department of Communication, Tokyo Women's Christian University, Tokyo, Japan,